Results 21 to 30 of about 50,337 (265)
IEEE Photonics Journal, 2013 We propose the design of a low-loss suspended core terahertz fiber with rectangular-shaped dielectric strips in the fiber cross section. The finite element method is used to analyze the characteristics of the suspended core terahertz fiber.
Yuan-Feng Zhu +5 more
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Sodium-Based Cylindrical Plasmonic Waveguides in the Near-Infrared
Nanomaterials, 2022 Subwavelength optical field confinement and low-loss propagation are of great significance for compact photonic integration. However, the field confinement capability of plasmonic devices is always accompanied by the inherent Ohmic loss.
Da Teng +9 more
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Sensors, 2020 A novel, rectangle-based, porous-core photonic crystal fiber (PCF) has been modeled for the efficient propagation of a THz wave. The performance of the anticipated model has been assessed using the finite element method (FEM) in the range of 0.5–1.5 THz.
Abdullah Al-Mamun Bulbul +3 more
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Accelerated quarks and energy loss in confinement theory [PDF]
International Journal of Modern Physics A, 2016 We study the energy loss rate (ELR) of the accelerated quark in terms of the holographic models for the two different motions, linear acceleration and uniform rotation. They are examined by two different nonconformal models with confinement. We found in both models that the value of ELR is bounded from below by the string tension of the linear ...
Ghoroku, Kazuo, Kubo, Kouki
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Applied Sciences, 2022 A direct algorithmic process can deal with the solution of the support–ground interaction in a circular tunnel excavation through the convergence-confinement method (CCM) with the concept of increment.
Yu-Lin Lee +5 more
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Photonics, 2022 A highly sensitive non-complex cored photonic crystal fiber sensor for hazardous chemical sensing with water, ethanol, and benzene analytes has been proposed and is numerically analyzed using a full-vector finite element method.
Abdul Mu’iz Maidi +4 more
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Wave-Shaped Microstructure Cancer Detection Sensor in Terahertz Band: Design and Analysis
Applied Sciences, 2023 For the quick identification of diverse types of cancer/malignant cells in the human body, a new hollow-core optical waveguide based on Photonic Crystal Fiber (PCF) is proposed and numerically studied. The refractive index (RI) differs between normal and
Md Rezaul Hoque Khan +5 more
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Energy-loss mechanisms and the annihilation of confined monopoles [PDF]
Nuclear Physics B, 1982 Abstract The annihilation process for a superheavy monopole-antimonopole pair connected by a relatively light magnetic flux tube (which is possibly relevant to the cosmological monopole problem) is studied. Three energy-loss mechanisms are considered in some detail.
F.Alexander Bais, Paul Langacker
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Sensing and Bio-Sensing Research, 2017 A micro structure folded cladding porous shaped with circular air hole photonic crystal fiber (FP-PCF) is proposed and numerically investigated in a broader wavelength range from 1.4 µm to 1.64 µm (E+S+C+L+U) for chemical sensing purposes.
Bikash Kumar Paul +3 more
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Optica, 2023 Antiresonant, hollow-core optical fibers are currently challenging or even exceeding the loss performance of conventional solid-core fibers. Despite this progress, there are aspects of the guidance mechanism in these fibers that are still not understood.
Leah R. Murphy, David Bird
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